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How do people whistle? How does whistling make a sound? Why does your tongue change a whistle higher or lower? Can you get a trophy for whistling? Can…

How are rocks made? Why are some rocks hard and others soft? How do rocks shine? How are geodes and crystals made? Why do some rocks have gems in them?…

Is it OK to do something that you were told not to do and then never tell anybody? In this episode we tackle that thorny question from 10-year-old Finn…

Have you ever felt competitive with a friend or a sibling? Competition comes up in a lot of different ways in life. Maybe you're running a race with a…

In the ice age, megafauna roamed North America: mammoths, saber-toothed cats, even giant land sloths! What happened to them? In this episode we answer…